620164252425 has 48 divisors (see below), whose sum is σ = 1058468735808. Its totient is φ = 320203161600.

The previous prime is 620164252391. The next prime is 620164252489. The reversal of 620164252425 is 524252461026.

It is not a de Polignac number, because 620164252425 - 2¹⁰ = 620164251401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486456 + ... + 1215305.

It is an arithmetic number, because the mean of its divisors is an integer number (22051431996).

Almost surely, 2^620164252425 is an apocalyptic number.

It is an amenable number.

620164252425 is a deficient number, since it is larger than the sum of its proper divisors (438304483383).

620164252425 is a wasteful number, since it uses less digits than its factorization.

620164252425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701930 (or 1701925 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 620164252425 in words is "six hundred twenty billion, one hundred sixty-four million, two hundred fifty-two thousand, four hundred twenty-five".